e1_input: remove unused function ipaccess_connect()
e1_input: remove unused function ipaccess_connect()

This function should live in openbsc instead.

telenoobie/libosmo-abis,osmobuntu/libosmo-abis,osmocom/libosmo-abis,osmocom/libosmo-abis,osmobuntu/libosmo-abis,telenoobie/libosmo-abis,osmocom/libosmo-abis,osmobuntu/libosmo-abis,osmobuntu/libosmo-abis